The Mediator PCI 4000D features:•5 PCI slots (PCI 2.1 compatible)For
simultaneous use of up to five PCI cards fully assimilated
in the Amiga environment.•6 Zorro III/II slots and one video slotFor
simultaneous use of up to six Zorro III/II cards.•33MHz PCI clock (66MHz with SharkPPC G3/G4)With
the PCI clock running at 33MHz, data transfers are executed
with the bandwidth of up to 132MB/s and up to 264MB/s for
66MHz clocking.•32-bit PCI datapatch
Longword transfers are supported in all data transfer types:
PCI to Amiga, Amiga to PCI and PCI to PCI.•4GB PCI memory spaceMediator
PCI 4000D allows access to the entire 4GB of the PCI memory
space.
•Busmastering/DMA in all PCI slotsMediator
PCI supports the busmastering mechanism in all its PCI slots.
The PCI cards in the busmaster mode can offer extremely fast
DMA access (up to 132MB/s) without any CPU load. Up to five
PCI busmaster cards may be used simultaneously in Mediator.
•SDRAM/SGRAM of PCI gfx card as
a DMA buffer
Mediator PCI 4000D can use part of the graphic card memory
for Amiga system needs. Thus, the entire system gains in effectiveness
as graphic card's SDRAM/SGRAM memory modules are about 10x
faster than FastRAM memory in Amiga turbo cards. With very
short access time in SDRAM/SGRAM, several PCI busmaster cards
may use this memory simultaneously. The PCI cards may then
rush at the data transfer rate of up to 132MB/s without any
CPU load whatsoever.
•DMA to A4000 motherboard space
Mediator PCI 4000D includes a busmastering controller supporting
transfers between PCI cards and the A4000 motherboard space.•Address and data parity control supportAddress
and data parity are supported in all Mediator slots. Parity
support is necessary for using PCI cards like Sound Blaster
Audigy, Sound Blaster Live! or ForteMedia FM801-based PCI
cards.•Interrupt controller (4 lines to each PCI card)
The Mediator Interrupt Controller manages four independent
PCI interrupt lines.•PCI and Zorro
Mediator PCI 4000D enables
simultaneous operation of up to five PCI cards and up to six
Zorro III/II cards.